In-situ Polymerization of Styrene to Produce Polystyrene / Montmorillonite Nanocomposites

Mrah, Lahouari; Méghabar, Rachid; Belbachir, Mohammed

doi:10.9767/bcrec.10.3.8708.249-255

Cited by 10 publications

(8 citation statements)

References 39 publications

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“…Another article about in-situ polymerization of styrene to produce polystyrene/montmorillonite nanocomposites was reported by Mrah et al [4]. In this study, it was found that a reactive cationic surfactant cetyltrimethylammonium bromide (CTAB) was synthesized for intercalation of montmorillonite Mmt, a Maghnite type of clay.…”

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confidence: 89%

Preface, BCREC Vol. 10 No. 3 Year 2015

Istadi

2015

Bull. Chem. React. Eng. Catal.

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Web of Science (Emerging Source Citation Index), and under evaluation to be indexed in Science Citation Index (Thomson Reuters-Web of Science). Thank you for great contribution to all respectful Authors, Peer-reviewers, and Editors. This issue (BCREC, Volume 10, Issue 3, Year 2015) has published 12 articles with various topics in catalysis materials synthesis, catalytic energy conversion, nano-technology, kinetics studies, advanced technology for chemical reaction, and catalytic polimerization. This issue was authored and co-authored by 50 authors from 7 countries (

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confidence: 89%

Preface, BCREC Vol. 10 No. 3 Year 2015

Istadi

2015

Bull. Chem. React. Eng. Catal.

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“…A mass of raw Maghnite (10 g) was placed in a volume of distilled water (40 ml), this mixture was left in suspension under magnetic stirring and at temperature ambient for 2 h. After 2 h, a volume (60 ml) of sodium chloride solution (NaCl, 0.2 M) was added to the previous mixture and stirred for 48 h. After this time, the Maghnite-Na + was filtered and washed several times with distilled water in order to remove Cl-ions. After filtration, the Maghnite-Na + was dried in the oven for 24 h at a temperature of 105 °C, afterwards it is finely ground and stored in a dry place [22,23].…”

Section: Preparation Of Maghnite-na +mentioning

confidence: 99%

Influence of clay modification process in polypyrrole-layered silicate nanocomposite

Mrah

Méghabar

2020

SN Appl. Sci.

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This work focuses mainly on the preparation and characterization of polypyrrole/organically modified clay nanocomposites. Organoclay/polypyrrole nanocomposites were prepared by oxidative polymerization of pyrrole in aqueous medium using ferric chloride as the oxidant. Initially, cetyltrimethyl-ammonium bromide and tetrabutyl-ammonium hydrogen sulphate were used as organophilic to modify clay and form an organic clay. After that, polypyrrole/organically modified clay nanocomposites were synthesized by in situ polymerization process in which pyrrole was polymerized in the presence of different proportions of organic clay. The effects of the nature of the organic clays and the preparation method were studied in order to evaluate their structural, morphological and thermal properties. X-ray diffraction (SAXS), Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, transmission electron microscopy, were used to define the characteristics of the materials obtained. The obtained results confirm the intercalation of molecules of salt in the clay layers, and good interaction with the polymer. Thermogravimetric analysis showed better thermal stability of nanocomposites compared to pure polypyrrole. The conductivity behaviour of nanocomposites was also examined. Graphic abstractKeywords Pyrrole · Montmorillonite · Conductivity · Nanocomposite · Thermogravimetric analysis (TGA)

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“…This MMT is called maghnite-CTA throughout this study. [20][21][22] Preparation of PPO/clay nanocomposites. Different PO-clay nanocomposites have been prepared using different amounts of modified clays corresponding to 1%, 5% and 10% by weight based on the initial amount of PO, and PO without clay has also been prepared under the same conditions as the standard.…”

Section: Organic Modification Of Claymentioning

confidence: 99%

Dispersion and improvement of organoclays in nanocomposites based on poly(propylene oxide)

Mrah

Méghabar

2020

Journal of Thermoplastic Composite Materials

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This work is mainly concentrated on the preparation and characterization of poly(propylene oxide) (PPO)/organic clay nanocomposites. The effects of the nature of organoclays and the method of preparation have been elucidated to evaluate their morphological, structural and thermal properties. These nanocomposites were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, thermal analysis (differential scanning calorimetry) and thermogravimetric analysis (TGA). This study involved the use of an Algerian clay called ‘maghnite’ which was modified by an incorporation method using different concentrations of the surfactant cetyltrimethylammonium bromide (CTAB). Propylene oxide (PO) was polymerized in the presence of ethylene glycol and various proportions of organic clay ranging from 1%, 5% and 10% by weight. The structural study by XRD showed, at different loading rates of maghnite and PO in the preparation of PPO/maghnite nanocomposites, different morphologies: intercalated/exfoliated blend and intercalated/agglomerated. TGA showed that the intercalation of PPO at the montmorillonite (MMT)-CTA interface would be more advantageous since the required amount of 5% organic clay (by weight) ensures high thermal stability of the nanocomposites, and the glass transition temperature ( T g) of PPO/MMT nanocomposites is higher than that of PPO since this increase is due to the introduction of clay into the matrix which makes the nanocomposite more rigid.

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In-situ Polymerization of Styrene to Produce Polystyrene / Montmorillonite Nanocomposites

Cited by 10 publications

References 39 publications

Preface, BCREC Vol. 10 No. 3 Year 2015

Preface, BCREC Vol. 10 No. 3 Year 2015

Influence of clay modification process in polypyrrole-layered silicate nanocomposite

Dispersion and improvement of organoclays in nanocomposites based on poly(propylene oxide)

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